Critical security advisoryCriticalFlagged by our vulnerability database: PHP2Shell is on CISA’s exploited list. Most WordPress hosting runs PHP. See if your site is affectedFlagged by our vulnerability database: PHP2Shell is being exploited. DetailsExploited: PHP2Shell. Check your site
HuttenlocherTechnologies
Updated 3 h ago

Vulnerability database

Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.

1,762exploited flaws on CISA’s list
34added in the last 30 days
333new WordPress flaws this week
390,007entries in the database

26 results

  • Sep 24, 2026An improper authentication vulnerability in PaperCut MF/NG allows an unauthenticated, remote attacker to trigger report generation.CVE-2026-87739 · Other software · PaperCut · reported by eb41dac7-0af8-4f84-9f6d-0272772514f4Medium 6.9

    An improper authentication vulnerability in PaperCut MF/NG allows an unauthenticated, remote attacker to trigger report generation. By submitting report generation requests without valid credentials, an attacker can generate reports and gain unauthorized access to sensitive information.

    Product
    PaperCut NG/MF
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 24, 2026An improper limitation of a pathname to a restricted directory (path traversal) vulnerability in the Scan-to-Fax component of PaperCut NG and PaperCut MF allowsCVE-2026-82077 · Other software · PaperCut · reported by eb41dac7-0af8-4f84-9f6d-0272772514f4High 7.3

    An improper limitation of a pathname to a restricted directory (path traversal) vulnerability in the Scan-to-Fax component of PaperCut NG and PaperCut MF allows an authenticated administrator to execute arbitrary commands on the underlying host via crafted fax provider settings.

    Product
    PaperCut NG/MF
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 5, 2026An issue was discovered in the Shared Account Synchronization component of PaperCut MF (version 25.0.4).CVE-2026-6418 · Other software · PaperCut · reported by eb41dac7-0af8-4f84-9f6d-0272772514f4Medium 4.6

    An issue was discovered in the Shared Account Synchronization component of PaperCut MF (version 25.0.4). The application allows administrative users to configure a source path for account data synchronization. Due to a lack of proper path validation and sanitization, an authenticated user with administrative privileges can specify arbitrary file paths on the local file system. This allows for the enumeration of directory structures and the unauthorized reading of sensitive text-based configuration or system files. When the synchronization process is triggered, the application attempts to parse the contents of the specified file, subsequently exposing the data within the application's account management interface. This vulnerability could lead to the disclosure of sensitive system information or configuration details, depending on the permissions of the service account under which the application is running.

    Product
    PaperCut NG/MF
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 5, 2026A race condition exists in PaperCut MF when processing badge-swipe data from certain HP multifunction devices.CVE-2026-6180 · Other software · PaperCut · reported by eb41dac7-0af8-4f84-9f6d-0272772514f4Medium 4.1

    A race condition exists in PaperCut MF when processing badge-swipe data from certain HP multifunction devices. Under specific network conditions involving dropped packets and out-of-order sequence counters, the server may incorrectly process fragmented data chunks. If a sequence reset notification fails to reach the server, the server may reject the initial data chunk while erroneously accepting subsequent chunks before a connection reset completes. This leads to the registration of a truncated badge ID string. While this typically results in an authentication failure, the vulnerability is compounded in environments utilizing custom badge-ID post-processing scripts. In such configurations, the truncated string may be transformed into a valid ID belonging to a different user, leading to unauthorized session establishment (Incorrect User Login) on the device.

    Product
    PaperCut NG/MF
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 9, 2024A reflected cross-site scripting (XSS) vulnerability exists in PaperCut NG/MF.CVE-2024-9672 · Other software · PaperCut · reported by eb41dac7-0af8-4f84-9f6d-0272772514f4Medium 6.3

    A reflected cross-site scripting (XSS) vulnerability exists in PaperCut NG/MF. This issue can be used to execute specially created JavaScript payloads in the browser. A user must click on a malicious link for this issue to occur.

    Product
    PaperCut MF
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 25, 2024An arbitrary file creation vulnerability exists in PaperCut NG/MF that only affects Windows servers with Web Print enabled.CVE-2024-8405 · Other software · PaperCut · reported by eb41dac7-0af8-4f84-9f6d-0272772514f4Medium 6.1

    An arbitrary file creation vulnerability exists in PaperCut NG/MF that only affects Windows servers with Web Print enabled. This specific flaw exists within the web-print.exe process, which can incorrectly create files that don’t exist when a maliciously formed payload is provided. This can be used to flood disk space and result in a Denial of Service (DoS) attack. Note: This CVE has been split from CVE-2024-4712.

    Product
    PaperCut NG, PaperCut MF
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 25, 2024An arbitrary file deletion vulnerability exists in PaperCut NG/MF, specifically affecting Windows servers with Web Print enabled.CVE-2024-8404 · Other software · PaperCut · reported by eb41dac7-0af8-4f84-9f6d-0272772514f4High 7.8

    An arbitrary file deletion vulnerability exists in PaperCut NG/MF, specifically affecting Windows servers with Web Print enabled. To exploit this vulnerability, an attacker must first obtain local login access to the Windows Server hosting PaperCut NG/MF and be capable of executing low-privilege code directly on the server via the web-print-hot-folder. Important: In most installations, this risk is mitigated by the default Windows Server configuration, which restricts local login access to Administrators only. However, this vulnerability could pose a risk to customers who allow non-administrative users to log into the local console of the Windows environment hosting the PaperCut NG/MF application server. Update: This CVE has been updated in May 2025 to update the fixed version and fix process. Please refer to the May 2025 Security Bulletin. Note: This CVE has been split from CVE-2024-3037.

    Product
    PaperCut NG, PaperCut MF
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 14, 2024An arbitrary file creation vulnerability exists in PaperCut NG/MF that only affects Windows servers with Web Print enabled.CVE-2024-4712 · Other software · PaperCut · reported by eb41dac7-0af8-4f84-9f6d-0272772514f4High 7.8

    An arbitrary file creation vulnerability exists in PaperCut NG/MF that only affects Windows servers with Web Print enabled. This specific flaw exists within the image-handler process, which can incorrectly create files that don’t exist when a maliciously formed payload is provided. This can lead to local privilege escalation. Note: This CVE has been split into two (CVE-2024-4712 and CVE-2024-8405) and it’s been rescored with a "Privileges Required (PR)" rating of low, and “Attack Complexity (AC)” rating of low, reflecting the worst-case scenario where an Administrator has granted local login access to standard network users on the host server.

    Product
    PaperCut NG, PaperCut MF
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 14, 2024An arbitrary file deletion vulnerability exists in PaperCut NG/MF, specifically affecting Windows servers with Web Print enabled.CVE-2024-3037 · Other software · PaperCut · reported by eb41dac7-0af8-4f84-9f6d-0272772514f4High 7.8

    An arbitrary file deletion vulnerability exists in PaperCut NG/MF, specifically affecting Windows servers with Web Print enabled. To exploit this vulnerability, an attacker must first obtain local login access to the Windows Server hosting PaperCut NG/MF and be capable of executing low-privilege code directly on the server. Important: In most installations, this risk is mitigated by the default Windows Server configuration, which typically restricts local login access to Administrators only. However, this vulnerability could pose a risk to customers who allow non-administrative users to log in to the local console of the Windows environment hosting the PaperCut NG/MF application server. Note: This CVE has been split into two separate CVEs (CVE-2024-3037 and CVE-2024-8404) and it’s been rescored with a "Privileges Required (PR)" rating of low, and “Attack Complexity (AC)” rating of low, reflecting the worst-case scenario where an Administrator has granted local login access to standard users on the host server.

    Product
    PaperCut NG, PaperCut MF
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 14, 2024This is a Server-Side Request Forgery (SSRF) vulnerability in the PaperCut NG/MF server-side module that allows an attacker to induce the server-side applicatiCVE-2024-1884 · Other software · PaperCut · reported by eb41dac7-0af8-4f84-9f6d-0272772514f4Medium 6.5

    This is a Server-Side Request Forgery (SSRF) vulnerability in the PaperCut NG/MF server-side module that allows an attacker to induce the server-side application to make HTTP requests to an arbitrary domain of the attacker's choosing.

    Product
    PaperCut NG, PaperCut MF
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 14, 2024This is a reflected cross site scripting vulnerability in the PaperCut NG/MF application server.CVE-2024-1883 · Other software · PaperCut · reported by eb41dac7-0af8-4f84-9f6d-0272772514f4Medium 6.3

    This is a reflected cross site scripting vulnerability in the PaperCut NG/MF application server. An attacker can exploit this weakness by crafting a malicious URL that contains a script. When an unsuspecting user clicks on this malicious link, it could potentially lead to limited loss of confidentiality, integrity or availability.

    Product
    PaperCut NG, PaperCut MF
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 14, 2024This vulnerability allows an already authenticated admin user to create a malicious payload that could be leveraged for remote code execution on the server hostCVE-2024-1882 · Other software · PaperCut · reported by eb41dac7-0af8-4f84-9f6d-0272772514f4High 7.2

    This vulnerability allows an already authenticated admin user to create a malicious payload that could be leveraged for remote code execution on the server hosting the PaperCut NG/MF application server.

    Product
    PaperCut NG, PaperCut MF
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 13, 2024This vulnerability potentially allows unauthorized write operations which may lead to remote code execution.CVE-2024-1654 · Other software · PaperCut · reported by eb41dac7-0af8-4f84-9f6d-0272772514f4High 7.2

    This vulnerability potentially allows unauthorized write operations which may lead to remote code execution. An attacker must already have authenticated admin access and knowledge of both an internal system identifier and details of another valid user to exploit this.

    Product
    PaperCut NG, PaperCut MF
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 13, 2024This vulnerability potentially allows unauthorized enumeration of information from the embedded device APIs.CVE-2024-1223 · Other software · PaperCut · reported by eb41dac7-0af8-4f84-9f6d-0272772514f4Medium 4.8

    This vulnerability potentially allows unauthorized enumeration of information from the embedded device APIs. An attacker must already have existing knowledge of some combination of valid usernames, device names and an internal system key. For such an attack to be successful the system must be in a specific runtime state.

    Product
    PaperCut NG, PaperCut MF
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 13, 2024This allows attackers to use a maliciously formed API request to gain access to an API authorization level with elevated privileges.CVE-2024-1222 · Other software · PaperCut · reported by eb41dac7-0af8-4f84-9f6d-0272772514f4High 8.6

    This allows attackers to use a maliciously formed API request to gain access to an API authorization level with elevated privileges. This applies to a small subset of PaperCut NG/MF API calls.

    Product
    PaperCut NG, PaperCut MF
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 13, 2024This vulnerability potentially allows files on a PaperCut NG/MF server to be exposed using a specifically formed payload against the impacted API endpoint.CVE-2024-1221 · Other software · PaperCut · reported by eb41dac7-0af8-4f84-9f6d-0272772514f4Low 3.1

    This vulnerability potentially allows files on a PaperCut NG/MF server to be exposed using a specifically formed payload against the impacted API endpoint. The attacker must carry out some reconnaissance to gain knowledge of a system token. This CVE only affects Linux and macOS PaperCut NG/MF servers.

    Product
    PaperCut NG, PaperCut MF
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 13, 2023This vulnerability potentially allows local attackers to escalate privileges on affected installations of PaperCut NG.CVE-2023-6006 · Other software · PaperCut · reported by eb41dac7-0af8-4f84-9f6d-0272772514f4High 7.8

    This vulnerability potentially allows local attackers to escalate privileges on affected installations of PaperCut NG. An attacker must have local write access to the C Drive. In addition, Print Archiving must be enabled or the attacker needs to encounter a misconfigured system. This vulnerability does not apply to PaperCut NG installs that have Print Archiving enabled and configured as per the recommended set up procedure. This specific flaw exists within the pc-pdl-to-image process. The process loads an executable from an unsecured location. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM Note: This CVE has been rescored with a "Privileges Required (PR)" rating of low, and “Attack Complexity (AC)” rating of low, reflecting the worst-case scenario where an Administrator has granted local login access to standard network users on the host server.

    Product
    PaperCut NG, PaperCut MF
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 19, 2023A Path Traversal vulnerability exists in PaperCut NG before 22.1.1 and PaperCut MF before 22.1.1.CVE-2023-31046 · Other software · Papercut · reported by MITREMedium 6.5

    A Path Traversal vulnerability exists in PaperCut NG before 22.1.1 and PaperCut MF before 22.1.1. Under specific conditions, this could potentially allow an authenticated attacker to achieve read-only access to the server's filesystem, because requests beginning with "GET /ui/static/..//.." reach getStaticContent in UIContentResource.class in the static-content-files servlet.

    Product
    Papercut MF
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 20, 2023The `PaperCutNG Mobility Print` version 1.0.3512 application allows an unauthenticated attacker to perform a CSRF attack on an instance administrator to confiCVE-2023-2508 · Other software · PaperCut MF/NG · reported by help@fluidattacks.comMedium 5.3

    The `PaperCutNG Mobility Print` version 1.0.3512 application allows an unauthenticated attacker to perform a CSRF attack on an instance administrator to configure the clients host (in the "configure printer discovery" section). This is possible because the application has no protections against CSRF attacks, like Anti-CSRF tokens, header origin validation, samesite cookies, etc.

    Product
    Mobility Print
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 4, 2023PaperCut NG and PaperCut MF before 22.1.3 on Windows allow path traversal, enabling attackers to upload, read, or delete arbitrary files.CVE-2023-39143 · Other software · Papercut · reported by MITRECritical 9.8

    PaperCut NG and PaperCut MF before 22.1.3 on Windows allow path traversal, enabling attackers to upload, read, or delete arbitrary files. This leads to remote code execution when external device integration is enabled (a very common configuration).

    Product
    Papercut MF
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 20, 2023PaperCut MF/NG Improper Access Control VulnerabilityCVE-2023-27350 · Other software · PaperCut · reported by zdi-disclosures@trendmicro.comExploitedRansomwareCritical 9.8

    PaperCut MF/NG contains an improper access control vulnerability within the SetupCompleted class that allows authentication bypass and code execution in the context of system.

    Product
    MF/NG
    On CISA’s list since
    Apr 21, 2023 (federal fix deadline May 12, 2023)
    What to do
    Attackers are using this now. Install PaperCut’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
  • Jun 6, 2019An unspecified vulnerability in the application server in PaperCut MF and NG versions 18.3.8 and earlier and versions 19.0.3 and earlier allows remote attackersCVE-2019-12135 · Other software · Papercut · reported by MITRECritical 9.8

    An unspecified vulnerability in the application server in PaperCut MF and NG versions 18.3.8 and earlier and versions 19.0.3 and earlier allows remote attackers to execute arbitrary code via an unspecified vector.

    Product
    Papercut MF
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 19, 2019PaperCut MF before 18.3.6 and PaperCut NG before 18.3.6 allow script injection via the user interface, aka PC-15163.CVE-2019-8948 · Other software · Papercut · reported by MITRECritical 9.8

    PaperCut MF before 18.3.6 and PaperCut NG before 18.3.6 allow script injection via the user interface, aka PC-15163.

    Product
    Papercut MF
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 28, 2014Unspecified vulnerability in Papercut MF and NG before 14.1 (Build 26983) allows attacker to cause a denial of service via unknown vectors.CVE-2014-2658 · Other software · Papercut · reported by MITREMedium 5

    Unspecified vulnerability in Papercut MF and NG before 14.1 (Build 26983) allows attacker to cause a denial of service via unknown vectors.

    Product
    Papercut MF
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 28, 2014Unspecified vulnerability in the print release functionality in PaperCut MF before 14.1 (Build 26983) has unknown impact and remote vectors, related to embeddedCVE-2014-2657 · Other software · Papercut · reported by MITREHigh 7.5

    Unspecified vulnerability in the print release functionality in PaperCut MF before 14.1 (Build 26983) has unknown impact and remote vectors, related to embedded MFPs.

    Product
    Papercut MF
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 22, 2014Cross-site request forgery (CSRF) vulnerability in the admin UI in Papercut MF and NG before 14.1 (Build 26983) allows remote attackers to hijack the authenticaCVE-2014-2659 · Other software · Papercut · reported by MITREMedium 6.8

    Cross-site request forgery (CSRF) vulnerability in the admin UI in Papercut MF and NG before 14.1 (Build 26983) allows remote attackers to hijack the authentication of administrators via unspecified vectors.

    Product
    Papercut MF
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.

Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.

Weekly security brief

The flaws that hit local websites, every Friday.

One short email: what got exploited this week, which WordPress plugins broke, and what to check. Unsubscribe in one click.

Get in touch

Tell us what you're building.

A website, your marketing, a security check, an app, or the thing you've been running out of a spreadsheet for three years. A few lines is plenty.

01The person who'll do the work writes back
02A short call, then a written plan with the price
03Nothing starts until you say yes
04Hacked or down right now? Call, and we pick up the same day
843-331-6339

Not ready to talk yet? Run the free website check and see what Google sees.

What do you need?
Build
Grow
Protect
Urgent

No newsletter, no sales sequence. Just a reply.